Improvement in tramming-bolts for grinding-mills



2Sheets--Sh-eet1.

J. T. NOYE.- Tramming Bolts for Grinding Mills. No. 142,809, Patented $ep tember16,18 73.'

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2 Sheets--Sheet 2. J. T. NUYE.

Tramming Bolts for Grinding Mills. No. 142,809. PatentedSeptember16, I873.

UNITED STATES PATENT QFFIGE.

JOHN T. NOYE, OF BUFFALO, NEW YORK.

IMPROVEMENT IN TRAMMlNG-BOLTS FOR GRINDING-MILLS.

V Specification forming part of Letters Patent No. 142,809, dated September 16, 1873; application filed February 17, 1873.

To all whom it may concern:

Be it known that I, JOHN T. NOYE, of the city of Buffalo, in the county of Erie and the State of New York, have invented a new and useful Device for Trarnming the Upper Stone of a Grain-Mill when the under stone is the runner, of which the following is a specification: Y

My invention consists in providing a trambolt device for traunning and securing the upper or stationary stone of a grain-mill (when the under stone is the runner) in such a manner that the stone once crammed will remain so, and not be affected or thrown out of trarn when it becomes necessary to remove the upper stone. 4

In the accompanying drawings, consisting of two'sheets, Figure I is a vertical section of my improved reversiblegear grain mill pro- "ided with my tramming-bolts. Fig. II is an enlarged sectional View of the trainining-bolt, showing the manner of its application to the tramming-ring. Fig. III is a side elevation of the same. Fig. IV is a section on line a b, Fig. III.

A is the frame of a portable grain-mill. B is the lower or running stone. (1 is the upper or stationary stone. D is a horizontal shaft, which runs through an oblong opening in the bridge -t-ree under the spindle point. This shaft extends across the entire bottom of the mill, and can be reversed at pleasure, thus bringing the driving-wheel on either side of the pinion.

F is the vertical spindle on which the running stone is hung, and by which it is driven. G is a pinion-wheel thereon, gearing into and driven by the bevel-wheel E. H is a trarnming-ring resting on three or more hollow tramming-bolts, h, which are provided with screw-threads, and are screwed into the frame A. J is a cast-iron ring secured to the upper stone, and having a projecting flange, the face of the flange being turned to fit and correspond to the face of the flange of the trainnii'ng-ring H, and resting upon and supported by it. By means of the tram-bolts h, the face of the upper stone may be tramined, so as to bring its face parallel to the face of the under stone. Bolts I are then inserted through holes drilled in rings H and J, corresponding with holes through the center of the hollow tramming-bolts h. t is a rubber spring for the purpose of allowing foreign substances to pass between the stones without injury to the mill. j is a collar to hold the bolt I in position when the nut at the upper end thereof is removed.

I claim A tramxning-bolt for grain-mills consisting of the hollow trainmingscrew h, upon theupper face of which the trannning-ring is supported, and the bolt I passing through said hollow tramming-screw, with a nut upon each end, all being arranged substantially as and for the purpose set forth.

JOHN T. NOYE.

Witnesses:

AMOS W. SANGSTER, VICTOR H. BECKER. 

